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Brand voice AI

Create consistent brand audio for ads, explainers, courses, product videos, and support content.

One designed voice can ship across campaigns, docs, and customer touchpoints.

Design a voice See pricing

How it works

  1. 1

    Design the brand voice

    Prompt the voice's tone, age, energy, and delivery style.

  2. 2

    Use it everywhere

    Render long-form Cast audio or realtime Speak clips from the same account.

  3. 3

    Keep economics simple

    Voice creation is free; synthesis is priced by generated audio minutes.

Built on

CastCinematic, emotional long-form TTS for podcasts, narration, and audiobooks.SpeakSpeak - text-to-speech (TTS) that starts in milliseconds.

Common questions

How do I design a brand voice?

Prompt the voice's tone, age, energy, and delivery style, then use it across ads, explainers, courses, product videos, and support content.

Can one voice cover both long-form and realtime?

Yes. Render long-form Cast audio or realtime Speak clips from the same account.

What does voice creation cost?

Voice creation is free; synthesis is priced by generated audio minutes.

Get an API key. Make a phone agent.

Sandbox keys never bill. Fund a live key when you go to production.

Get API Key